Cardiac catheterization keyboard overlay



FIG. 1 is a top plan view of a cardiac catheterization keyboard overlay showing our new design;

FIG. 2 is a right side elevation of our design; the left side elevation is the same as the right side elevation;

FIG. 3 is a front elevation of the design; the rear elevation is the same as the front elevation; and

FIG. 4 is a bottom plan view of our new design. 

The ornamental design for a cardiac catheterization keyboard overlay, as shown and described. 